Question

WHAT IS PROCESSOR?
HOW IT WORKS?

Answer 1

Answer:

A processor (CPU) is the logic circuitry that responds to and processes the basic instructions that drive a computer. ... CPUs will perform most basic arithmetic, logic and I/O operations, as well as allocate commands for other chips and components running in a computer.

Answer 2

Answer:

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In computing, a processor or processing unit is a digital circuit which performs operations on some external data source, usually memory or some other data stream.

The actual mathematical operation for each instruction is performed by a combinational logic circuit within the CPU's processor known as the arithmetic logic unit or ALU. In general, a CPU executes an instruction by fetching it from memory, using its ALU to perform an operation, and then storing the result to memory.